Portable air purifier



FIG. 1 is a perspective view of a portable air purifier showing my newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view of a portable air purifier showing in useview.

The broken lines in the drawings depict portions of the portable airpurifier that form no part of the claimed design.

CLAIM The ornamental design for a portable air purifier, as shown anddescribed.